Mcp

18 posts

The Academic Case for Deterministic AI Agent Enforcement

A new research paper argues that LLMs cannot self-enforce security constraints. Intercept implements every recommendation — as open-source software you can deploy today.

security thought-leadership mcp

Preventing Your AI Agent From Messaging #general

The Slack MCP server lets AI agents post messages, reply to threads, and add reactions. Here's how to rate limit messaging before your agent spams your workspace.

tutorial mcp slack

Your AI Agent Has Push Access to Every Repo

The GitHub MCP server exposes 83 tools — including file deletion, repo creation, and PR merges. Here's how to enforce policies before your agent ships something it shouldn't.

tutorial mcp github

Your Coding Agent Can Delete Any File on Disk

The filesystem MCP server gives AI agents unrestricted read and write access. Here's how to rate limit file operations and prevent destructive mistakes.

tutorial mcp filesystem

How to Stop Your AI Agent Draining Your Stripe Account

The Stripe MCP server gives AI agents access to 27 tools including refunds, charges, and payment links. Here's how to enforce rate limits and spending controls.

tutorial mcp stripe

One Tool Call Away From a $10,000 AWS Bill

The AWS MCP server exposes 55 tools for EC2, S3, Lambda, and RDS. Here's how to block destructive operations and rate limit resource creation.

tutorial mcp aws

Your AI Agent Can Send Emails as You

The Gmail MCP server gives AI agents access to send emails, delete messages in bulk, and manage your inbox. Here's how to rate limit sends and block batch operations.

tutorial mcp gmail

Your AI Agent Can Run DROP TABLE on Production

The PostgreSQL MCP server exposes a raw SQL query tool with no restrictions. Here's how to rate limit queries before your agent drops a table.

tutorial mcp postgresql

Your AI Agent Can Delete Your DNS Records

The Cloudflare MCP server gives AI agents access to DNS changes, worker deployments, and zone management. Here's how to block deletions and rate limit infrastructure changes.

tutorial mcp cloudflare

Your AI Agent Can Delete Every Container on Your Machine

The Docker MCP server gives AI agents access to container removal, image deletion, and volume destruction. Here's how to block destructive operations.

tutorial mcp docker

One FLUSHALL Away From Losing Everything

The Redis MCP server lets AI agents run SET, DELETE, and FLUSHALL. Here's how to block destructive commands and rate limit writes.

tutorial mcp redis

The Case for Deterministic AI Agent Policies

AI agents decide probabilistically, but safety constraints shouldn't. Why deterministic policy enforcement outside the model produces more reliable agent systems.

thought-leadership security policy-enforcement

MCP Security: Why Prompt Guardrails Aren't Enough

Prompt guardrails for MCP agents are bypassable and unauditable. Why deterministic policy enforcement at the transport layer is the real security primitive.

security mcp thought-leadership

What Happens When Your AI Agent Goes Rogue

What happens when your AI agent goes rogue? Six failure modes — runaway loops, spending spirals, destructive ops — and the deterministic policies that stop them.

security mcp failure-modes

Rate Limiting MCP Tool Calls: A Practical Guide

Learn how to add per-tool and global rate limits to MCP agents with YAML policies. Covers counters, wildcards, and stateful tracking.

tutorial mcp rate-limiting

How to Add Spending Controls to Any MCP Agent

A step-by-step guide to adding transaction limits, daily spend caps, and currency restrictions to MCP-connected AI agents using YAML policies and the Intercept proxy.

tutorial mcp spending-controls

One Command to Policy-Enforced Agents: Introducing the CLI Init Tool and MCP Server

npx @policylayer/mcp init takes you from zero to policy-enforced AI agent in under a minute. Browser auth, guided setup, and MCP tools your agent discovers automatically.

feature announcement mcp

How to Add Spending Controls to Any MCP Agent

MCP servers are giving AI agents access to wallets, bridges, and DeFi. Here's how to enforce spending limits on any MCP-powered agent in under five minutes.

mcp tutorial security